Ruby

Receive a 16-bit Integer from a Socket

Demonstrates Socket.ReceiveInt16, which reads exactly two bytes as a 16-bit integer and stores the result in the ReceivedInt property. Byte order and signedness are selectable.

Background. Fixed-size integers and length prefixes are common building blocks for application-defined binary protocols. Byte order is selectable, with big-endian being network byte order.

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Ruby

require 'chilkat'

success = false

socket = Chilkat::CkSocket.new()

#  Connect to the server using TLS.
bTls = true
maxWaitMs = 5000
success = socket.Connect("example.com",5000,bTls,maxWaitMs)
if (success == false)
    print socket.lastErrorText() + "\n";
    exit
end

#  Read exactly two bytes as a 16-bit integer and store the result in the ReceivedInt property.
#  The 1st argument selects byte order (true = big-endian); the 2nd selects unsigned interpretation.
bBigEndian = true
bUnsigned = false
success = socket.ReceiveInt16(bBigEndian,bUnsigned)
if (success == false)
    print socket.lastErrorText() + "\n";
    exit
end

print "Received 16-bit integer: " + socket.get_ReceivedInt().to_s() + "\n";